I spent an hour and a half ripping the entities from Doomsday to get mine working. Mine is pretty clean (you're going to have errors in the error checker either way - there's input commands that the error log doesn't "recognize" yet), so I might toss it up in a bit so others can use it.

I'm looking at it right now and it appears to have everything intact, and even comes with a demo map so you can see how it works.

So it includes: The rocket with a blast pipe, like the one on doomsday
The rocket without a blast pipe
The Australium case with the smashed crate, same as in doomsday
The demo map so you can check how it works

Each of these come in separate vmfs that you can copy/paste the pieces from into your maps.

Also worth noting, it comes with all sound effects involved as well built in.